The 21-year-old has recently been strongly linked with a move to Manchester United.
"Iím very aware that Iím still young and have a lot to learn, but I would eventually like to play in Spain," Rodriguez told the official Fifa website.
"Itís a league that Iíve always watched Ė itís different from the English League, which is very physical.
"The game in Spain is more about technique, and about getting more touches on the ball. Thatís why I like it so much."
Rodriguez's current contract with Porto is set to expire in the summer of 2016.